pbzip2 can only decompress archives in parallel that have been compressed with pbzip2. For example, extracting linux-2.6.23.8.tar.bz2 as found on kernel.org with pbzip2 takes roughly twice as long on a dual core system when compared against bzip2.

GNU tar has the option --use-compress-program. So you could just write a script which calls "exec 7z" with appropriate parameters and use that option. I can imagine (depending on the implementation in GNU tar which I did not check) that this could be slightly faster than using the shell for piping.

pbzip2 can only decompress archives in parallel that have been compressed with pbzip2. For example, extracting linux-2.6.23.8.tar.bz2 as found on kernel.org with pbzip2 takes roughly twice as long on a dual core system when compared against bzip2.

pbzip2 can only decompress archives in parallel that have been compressed with pbzip2. For example, extracting linux-2.6.23.8.tar.bz2 as found on kernel.org with pbzip2 takes roughly twice as long on a dual core system when compared against bzip2.

Just delivered a .tar.bz packaged with pbzip2 to a far east factory partner that they could not unpack with WinRAR. It appears I had installed pbzip2 since I had last delivered anything to the factory. Another strike against pbzip2.

- John_________________I can confirm that I have received between 0 and 999 National Security Letters.